package com.mccrea.pattern.facade;

/**
 * @Classname Stereo
 * @Description 立体声
 * @Date 2021/5/11 0011 15:32
 * @Created by Mccrea_Gao
 */
public class Stereo {
    private Stereo() {

    }
    private static final Stereo INSTANCE = new Stereo();

    public static Stereo getInstance() {
        return INSTANCE;
    }

    public void on() {
        System.out.println("立体声打开");
    }

    public void off() {
        System.out.println("立体声关闭");
    }

    public void up() {
        System.out.println("立体声调大");
    }

    public void down() {
        System.out.println("立体声调小");
    }
}
